Machine for making pipes of cement



(No' Model.) 2 Sheets-Sheet I. J. SHARPE. MACHINE FOR MAKING PIPES 0PCEMENT, GLAY, 8w.

Patented Oct. 10, 1893.

W m/latt/ 6' (N5 Model.)

2 Sheets-Sheet 2. 5 J. SHARPE. MACHINE FOR MAKING PIPE-5 OF CEMENT,CLAY, 8w.

Patented Oct. 10, 1893.

UNITE STATES PATENT FFICE- JOSEPH SHARPE, OF PATERSON, NEW JERSEY.

MACHINE FOR MAKING PIPES OF CEMENT, CLAY, 80G.

SPECIFICATION forming part of Letters Patent No. 506,557, dated October10, 1893.

Application filed May 31, 1893.

To all whom it may concern:

Be it known that 1, JOSEPH SHARPE, of the city of Paterson, in thecounty of Passaic and State of.New Jersey, have invented certain new anduseful Improvements in Machines for Making Pipes of Cement, Clay, orSimilar Substances, of which the following is a specification.

This invention relates to a new and improved machine of simpleconstruction for making pipes with a socket at one end, from clay,cement, composition or any substance of which drawings like letters ofreference indiand others shown in section.

cate like parts, Figure 1 is a side elevation of the improved machinefor making pipes from clay, cement, 850., parts being broken away Fig. 2is a plan view of the cutting device. Fig. 3 is a horizontal sectionthrough the bottom of mold.

' the cutting device.

Fig. 4 is a side view of the outer mold and of In the drawingsA is a cyto the lower end of which the funnel shaped" ortapering bottom section-B is bolted, which in turn has a mold C- bolted to its bottom edge bymeans of boltspassed through lugs projecting from the top of said moldO, into the side of the section B- near the bottom edge thereof. Theinner diameter of the mold O is equal to the outer diameter of thesocket to be formed on "one end of the pipe to be produced. The mold Cis bolted to the section B in such a manner that a horizontal annularslot D- is formed between the top edge of the mold C and the bottom edgeof the section B. Through this slot the cutting off wire E is passed andthe ends of this wire pass through two side pieces F- at opposite endsof the section .-B, and the wire can be drawn taut by nuts F screwed onthe ends of the wire and resting against the outer edges of the sidepieces -F-. The side pieces F- are connected by two semi-circularhandlelindrical mold,

I engage with the recesses Q'.

Serial No. 476,052. (No model.)

bands or hoops G as shown in Fig. 2. The side pieces F are suspended bymeans of arms H from rods J- mounted to slide in sleeves K- bolted tothe sides of the section B at the top thereof, and these guide sleeves Khave longitudinal bottom slots through which the arms H can slide orpass. The section -B contains an auger shaped or screw presser M mountedcentrally therein between an inner mold M and the outer mold B whichpresser, extending downward to the narrow opening between the inner andouter molds, revolves around the conical center mold M The exteriorbottom diameter of the center mold M is equal to the bore or innerdiameter of the pipe to be made and the inner diameter of the bottom B'of the mold -B is equal to the exterior diameter of the pipe to be made.The top of the bottom mold -O is rounded on the inside to conform to thedesired shape of the exterior of the socket to be made on one end'of thepipe. 'A plat form N, with a center pin N, is at tached to a suitablerod or shaft which operates vertically.

On the top of the platform N- and centered on pin N' is an adjustablemold or core P for forming the interior of the socket or flange ononeend of the pipe to be produced, said core or mold having a top piece Qprovided with two opposite recesses Q for receiving the lugs Rprojecting inwardly from the bottom of the center mold M*. A foot lever-U' pivoted to the frame I supportingthe entire device is connected by arod .U"- with a lever -W pivoted at -'W":zand having its other end soconstructedasto" grip the pin S' which passes throughthe-:v'ierticalurod or shaft for forcing the platform which holds theadjustable core mold 'P' upinto the socket mold C until the lugs R Theplatform is raised by the hand until pin S, shown at the lower end ofthe vertical rod, can be engaged by the outer end of .lever W, uponwhich the parts are forced or pressed'into operative engagement for thepurpose of causing the adjustable core mold -P to rotate with the innermold -M which is secured to the shaft V-, whereby the cement or othermaterial is forced out into the mold C over the core -P and a socket isthereby formed on one end of the pipe to be produced. The screw-presserM revolving forces the cement or clay composition down into the spacebetween the inside of the mold O- and the exterior surface of the coreor mold P thlfs shaping the socket of the pipe. The downward pressure onthe platform increases when said space is filled and the socket isformed and the operator who has his foot on the lever -U notices thisincreased pressure and removes his foot and the clay or other materialof cement composition, for example, is forced through the ring shapedslot between the bottom of the center mold M and the ring or bottomportion -B. of the outer mold B- thereby pressing the platform N' andthe core P downward, and in so doing a pipe is formed the inner diameterof which is equal to the exterior bottom diameter of the center mold Mand theexterior diameter of which is equal to the inner diameter of thering portion B. The adjustable core mold P- ceases to rotate with thecenter mold M as soon as it is'lowered a sufficient distance for therecesses -Q to become detached or released from the lug R-. The platformgradually descends as the pipe is formed and when the pipe has thedesired length it is cut off by moving the cutting of wireE across thebottom of the section B'. The cutting ofi Wire remains in this positionuntil thenext pipe is formed which is in turn out off by moving thecutting off wire back again, ands'o on. When the completepipe isremoved, the platform is raised and another socket and pipe formed. M

With this I description of my invention, what I claim isl. An improvedmachine for making pipes, consisting of an outer mold, and a screwpresser in combination with a centrally mounted conical shaped innermold, a bottom section or socket mold secured to the bottom edge ofsaidouter mold, the inside of said bottom mold beingso constructed as toconform to the exterior shape of a pipe socket, the bottom mold being sosecured to the outer mold as to leave a horizontal annular slot betweenthe lower edges of the inner and outer molds and the top edge of thesocketmold, and a cutter suitably hung and secured and adapted to workfrom side to side in said horizontal annular slot, the whole constructedsubstantially as shown and described and for the purpose specified.

2. An improved machine for making pipes, consisting of an outer mold,and a screw pre sser, in combination with a centrally mounted conicalshaped innermold, a bottom section or socket mold secured to the bottomedgeof said'outer mold, the inside of said bottom mold being soconstructed as to conform to the exterior shape of a pipe socket, thebottom mold being so secured to the outer mold as to leave a horizontalannular slot between the lower edges of the inner and outer molds andthe top edge of the socket-mold, and a cutter suitably hung and securedand adapted to work from side to side in horizontal annular slot anadjustable core mold mounted on a platform and adapted to move towardand from said bottom or socket mold, the top of said adjustable corehaving recesses and the conical shaped inner mold being provided withprojecting lugs on the inside thereof said lugs being adapted to engagethe recesses on the topof said adjustable core, as described and shownand for the purposes specified;

3. In an improved machine for making pipe, the combinationof the outermold B, B, the inner mold M provided with projecting lugs R, the bottomor socket mold C, the adj ustable core P provided with recesses Qadapted to engage with said lugsR, substantially as shown and describedand for the purposes specified.

4. In a pipe making machine, the combination with the outer mold B, B,inner mold M and screw presser M, of the bottom socket mold O, securedto said outer mold so as to leave a horizontal annular slot D, adaptedto receive and permit the operation of a cutter, a rod or shaft the topof which forms a center pin, a platform mounted on said shaft and anadjustable core on said platform over said center pin, said shaft,platform and core adapted to move vertically into and from said socketmold O, substantially as shown and described and for the purposesspecified.

5. In an improved machine for making pipe, the combination of. ascrewpresser with an outer and inner mold and a bottom socket mold, theinterior diameter of which equals the outer diameter of a socket to beformed on pipe to be produced, said bottom or socket mold being securedto the outer mold in such a manner as to leave a horizontal annular slotbetween the upper molds and said bottom mold, said slot being adapted toreceive and permit the operation of a cutter, and a cutter adapted forthe purposes specified, substantially asshown.

6. In a machine for making pipe the combination withthe mold B, the moldC, said molds being secured together so as to form the horizontalannular slot D, of a cutter adapted to work in said annular slot, saidoutter consisting of the wire E, sides F, the handle bands G, said wiressecured to the sides by nuts F, the sleeve K secured to the mold andhaving longitudinal slots therein, rods J in said sleeves, arms H uponwhich the sides are suspended, secured to the rods, and adapted to slideon the sleeves, substantially as and for the purposes specified.

In testimony whereof I hereunto set my hand this 27th day of May, A. D.1893.

JOSEPH SHARPE.

Vitnesses:

J. WILsoN SHARPE, HENRY W. VENNER.

